A) Expand and simplify. 7(x - 2) - 2(x - 1) b) Factorise fully. 8x2 + 6x
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Answer:
82 kg
Step-by-step explanation:
To find the mean of a set of values, we must add them up and divide by the number of values.
Step 1, adding the values:
Step 2, dividing by the # of terms:
There are 9 terms in total.
To the nearest kilogram, we can round 81.556 into 82.
The mean mass of the 9 men was kg.
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